Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [amos]

AMOS is IBM SPSS AMOS, proprietary structural equation modelling software.

69 questions
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Comparing structural equation models with multivariate non-normality

I am aware that multivariate non-normality in SEM can inflate the chi-square statistic and deflate standard errors of parameter estimates. I can deal with the latter (in AMOS) using bootstrapping procedures. But here's my specific question: while I…
Gary
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Comparing SEM software apps: AMOS vs Stata vs Mplus vs R ---- opinions please?

I have AMOS and Stata, and I have a colleague who has Mplus (and I'd rather not ask the colleague to run my data for me). I recently discovered that Stata has SEM capabilities. I looked online, but I can't find any comparison of Stata vs AMOS vs…
thanks_in_advance
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What is causing degrees of freedom and negative variance issues when estimating CFA with uncorrelated factors?

Ultimately I want to estimate a second-order factor structure in AMOS. As such I am trying to compare the fit of a first-order model in which the first-order factors are (a) constrained to be uncorrelated, and (b) free to correlate. I am running…
user27787
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Missing data in path analysis using AMOS -- data imputation, EM, multiple imputation, or ML?

This question reflects the dilemma I face in analyzing path models using AMOS with missing data. I have a dataset with n = 116, missing rate = 6% (Missing at Random) for a full path model with about 20 parameters. My analysis is performed using SPSS…
fishbean
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Good Multivariate normality coefficient but suspicious univariate indices in AMOS, what to do?

We are conducting a research with 15 observed variables. Before starting a SEM model based on our data-set (of 531 cases), we tried to check for uni-variate & multivariate normality problems. The attached image shows the results from AMOS. A…
nisr
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Removing parameters in SEM when $\chi^2$ value and DF are 0

I am VERY new to SEM. I ran a model where I obtained 0 DF, so it could not compute the fit. So, I am left to cut out parameters. HOWEVER, I'm not sure where I can cut them in my particular case. I have attached here a screenshot of my…
sarah
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How to get confidence intervals for specific indirect effects in Amos?

Say I have an SEM model with 1 predictor variable (IV), 2 mediators (MV1, MV2) and 1 dependent variable (DV). Amos reports combined indirect effects for an IV on a DV. So the combined indirect effect would be the sum of the component indirect…
Jeromy Anglim
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SEM or path analysis using AMOS, issues with sample size and model complexity

I am new to SEM / AMOS and as such I have done a lot of reading around my problem but find I am getting lost, any help would be appreciated and I am sorry if this sounds rather basic; I have a model that looks at a number of factors (distal,…
Sarahp5616
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What does a chi-square value of zero means in CFA?

I am new to SEM and I am trying to run CFA for a 3-item Job satisfaction scale in Amos. I am getting the following as results. Chi-square = .000 Degrees of freedom = 0 Probability level cannot be computed I am not able to understand what does this…
Rahul
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Are composite variables (eg. a score) valid to perfom a SEM in AMOS?

I have a resilience scale with 11 items (observed variables), from which I calculated the mean to get a "resilience score" (what would usually be an unobserved variable or latent construct in SEM terminology). Can I just use this resilience score…
JuanD
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Structural equation modeling with repeated measures

I have data that I thought would lend itself easily to structural equation modeling, but I cannot figure out one issue -- how to handle repeated measurement in SPSS AMOS. Participants were randomly assigned to one of two conditions (labeled…
le_andrew
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Using SEM or multiple regression for analyzing questionnaire data with multiple 'sub-items'

I am currently doing my MBA and I am attempting to find out what variables affect new student intake at the university which I am working at. My model is based on the 7Ps of the marketing mix (Product, Place, Price, Promotion, People, Process and…
James
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Can Amos SEM deal with binary dependent variable?

Hi I'm doing a SEM using AMOS. The outcome is the success of consumer satisfaction, which is measured by 2 questions. How satisfied are you? (1-7) How likely would like to recommend ? (1-10) If score for Q1>5 and Q2>7, the outcome is positive and…
Shijie Wang
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What test should I perform on a structural equation model?

This model is a replication of an earlier study. After factor analysis in SPSS, I need to test my hypothesis (as you can see there are 7) all should give significant positive relation with each other. For example, Innovativeness has a significant…
talhajawed
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Why did fixing the covariance value cause AMOS to mis-estimate variance?

I have 100 data points on two variables, a and b. The correlation between the two is .3 and the SD is 1. When I run the following in AMOS I get sensible estimates (.995 and 1.001) for the variances of both a and b, even though I've fixed the…
user1205901 - Reinstate Monica
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